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Science > Bacteria > Flashcards

Bacteria Flashcards

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Biology 101 flashcards
1
Q

what structure contains the ameba’s DNA

A

the nucleus

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2
Q

how does an ameba reproduce

A

goes through mitosis

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3
Q

what disease is caused by the ameba

A

Amebic Dysentery

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4
Q

during unfavorable conditions, an ameba forms a

A

cyst

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5
Q

to what kingdom does the ameba belong

A

kingdom protista

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6
Q

how are protozoans classified

A

by how they move

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7
Q

are euglena unicellular or multicellular

A

unicellular

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8
Q

what kingdom do euglena belong to

A

kingdom protista

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9
Q

what organelle carries out photosynthesis

A

chloroplasts

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10
Q

define autotrophic

A

can make its own food

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11
Q

define heterotrophic

A

must consume food

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12
Q

what is the eyespot used for

A

find bright areas to gather sunlight to make food

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13
Q

what is the function of the contractile vacuole? what would happen if the cell did not have this organelle.

A

helps the cell membrane excess water; take in so much water it’ll explode

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14
Q

what is the funnel like depression on the pellicle called

A

oral groove

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15
Q

how do paramecia regulate their water content

A

contractile vacuoles

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16
Q

how do paramecia move

A

cillia

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17
Q

what is the function of the macronucleus

A

controls most of the metabolic reactions

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18
Q

what is the function of the micronucleus

A

involved primarily in reproductive and hereditary

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19
Q

what do paramecia use for defense

A

trichocysts

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20
Q

where can you find paramecia

A

moist environment

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21
Q

where does digestion occur in a paramecium

A

in the food vacuoles

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22
Q

cell

A

basic unit of life

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23
Q

prokaryotes

A
  • single celled
  • no nucleus
  • no membrane bound organelles
24
Q

eukaryotes

A
  • single or multi-celled
  • one or more nuclei
  • membrane bound organelles
25
Q

structures within the cell, each with a specific function

A

organelles

26
Q

2 domains

A

bacteria/ eukarya

27
Q

6 kingdoms of life

A
  • protista
  • eubacteria
  • fungi
  • plant
  • animal
28
Q

what characteristics do all prokaryotes have in common

A

lack a nucleus and membrane bound organism

29
Q

what is the best know prokaryote and where can they be found

A

eubacteria; found everywhere on surfaces and in the soil

30
Q

name the 2 kingdoms for prokaryotes

A
  • eubacteria

- archaebacteria

31
Q

name the 2 bacteria domains

A

archaea; bacteria

32
Q

where are the bacterial members of the domain archaea found

A

found in extreme environments, like hit sulfur springs and thermal vent in ocean floor

33
Q

what are thought to be the oldest organisms on earth

A

archaeabacteria

34
Q

are all bacteria heterotrophic

A

no

35
Q

what bacteria lives in our gut to help digest food

A

E.coli

36
Q

what is the function for most bacteria and how is this helpful to them

A

heterotrophic; rely on other organisms to provide them with food

37
Q

name several food products made with the help of bacteria

A

cheese; yogurt

38
Q

give any example of a photosynthetic bacterium

A

cyanobacteria

39
Q

three shapes of bacteria

A

cocci (round)
bacilli (rod)
spirilla (spiral)

40
Q

what two parts of a bacterium determine its shape

A

cell wall

41
Q

how does an ameba move

A

by stretching its cytoplasm into fingerlike extensions called pseudopodia

42
Q

name 2 structures that aid bacteria in movement

A

pili ; flagella

43
Q

what covers the outside of all prokaryotes

A

cell wall

44
Q

what is the function of pili

A

to help it stick to surfaces

45
Q

what structure, if present, let bacteria be motile

A

flagella

46
Q

describe the chromosome (DNA) of bacteria be motile

A

single stranded loop in cytoplasm

47
Q

what is the purpose of ribosomes

A

produce protein

48
Q

DNA

A

code for life

49
Q

pili

A

helps stick to surfaces

50
Q

cell wall

A

structure and support

51
Q

cell membrane

A

controls what goes in and out of cell

52
Q

ribosomes

A

produce protein

53
Q

flagella

A

helps it move

54
Q

contractile vacuole

A

gets rid of excess water

55
Q

nucleus

A

controls the cell

56
Q

food vacuoles

A

digest food

57
Q

pseudopodia

A

helps it move

Science (12 decks)

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